Headlight.



C. R. BLACKMAN.

HBADLIGHT.

APPLICATION FILED DBO. 4,1909. 5939@ Patented May 31, 1910.

2 SHEETS-SHEET 1.

@fi/MMM C. R. BLAGKMAN.

HEADLIGHT APPLICATION FILED D A Patented May 31, 1910.

2 SHEETS-SHEET 2.

Cutocnm o tilt@ 111 CARL EL. BLACKMAN, OF COLORADO SPRINGS, COLORADO.

HEADLIGHT.

Speccation of Letters Patent.

Application led December 4, 1999. Serial No. 531,375.

ing is a specication.

1t is the object of this invention to provide adevice of the class above mentioned so constructed that it may serve as a pivotal mounting for a pair of headlights of the type commonly lused upon vehicles, means being provided whereby a lamp may operatively be connected with the movable portion of the axle of the vehicle, so that, as the said portion ot the vehicle axle moves pivotally, to enable the vehicle to round a corner, the lamp may be turned accordingly, to follow the curve which the vehicle is taking.

The drawings show but one form of the invention and it is to be understood that changes, properly falling within the scope of what is claimed, may be made, without departing from the spirit of the invention.

Similar numerals of reference are employed to denote corresponding parts throughout the several figures of the drawings, wherein Figure 1 is a front elevation.; Fig. 2 is a top plan; Fig. 3 is a side elevation; Fig. 4' is a top plan of the case and of the mechanism contained therein, parts being broken away 'better to illustrate the structure; and Fig. 5 is a longitudinal section of the case, parts being shown in elevation.

rlhe invention includes a pair of cases l, adapted to be mounted upon the front of a yehicle. These cases 1 and the mechanism which is assembled therewith, are identical in construction, and a description of one of them will sumce for both.

The case 1 is provided upon its lower face, with a pair of depending arms 2 adapted to extend upon either side of the springs of the vehicle, a retaining member t being passed transversely through the arms 2 to secure the case to the springs. It is of course to be understood that any other desired means for mounting the case in place may be provided, in order that the case may be mounted otherwise than upon the springs of the vehicle. The forward end of the case 1 is approximately circular in contour, as shown most clearly in Fig. f1 of the drawings, the rear end of the case 1 being reduced in breadth, and brought to a blunt point, as denoted by the numeral 3. The case 1 is closed uponl all sides, saving for openings 7 in the side walls thereof, ad'acent the rear end ci' the case. Journaled tor rotation 'in the case 1 is an upright shaft 5, 'extended above the top of the case, and provided with bifurcations 6 in which the lamp may be mounted in the usual manner.

Secured to the shaft 5 within the case 1, is a pinion-8, to the rear of which, and intermeshing therewith, is a smaller pinion 9, carried by a shaft 1() which is terminally mounted in the top and in the bottom of the case 1. f

A bar 11 is provided, having, adjacent its ends, racks 12. This bar 11 is adapted to be inserted in the openings 7 in the case 1, the racks 12 engaging the pinions 9 which are mounted within the cases. Secured to the rear walls of the cases 1, by means of bolts 15 or the like, are leaf springs 14, arcuate in form, the extremities of which are adapted to bear against the bar 11, to hold the racks 12 in mesh with the pinions 9.

An arm 18 is provided, adapted to be assembled with the movable section 19 of the axle of the vehicle. ln the present instance, the lower extremity of this arm 18 is bifurcated as denoted by the numeral 21, to embrace a portion of the axle 19, and to the ends of the bifurcation 21 is secured by bolts, or'otherwise, a cap 20, whereby the arm 18 may be secured upon the portion 19 of the axle. This arm 18 extends forwardly of the section 19 ot the axle, and rises above the same, the upper extremity of the arm 18 being pivotally connected with a bar 16, at one end, the other extremity of the bar 16 being united by a ball and socket joint 17, with. one end of the rack bar 11, the bar. 16 being disposed in a common plane with the rack bar.

By fashioning the arm18 as shown, thc lamps which are assembled with the shafts 5 may be located at any desired distance in front of the axle of the vehicle, the forward curvature of the arm 18 permitting the said arm to be mounted relatively near to the inner end of the movable section. 19 and away from the moving wheel, the upper end of the arm 18, nevertheless, moving in an are of 'suiiciently large radius, properly to operate the rack bar 11.

When the vehicle is moving upon level ground, as is ordinarilv the case, owing to Patented May 31, '1910.1

the fact that the rack bar 11 is maintained in a 'horizhntal position by means of the; cases 1, and owing to the fact that the bar 16 is pivot-ally connected with the rackbar lland with theA arm 18, the rack bar 11-will have a smooth, even movement in the direc- .,tion olf its length only, any tilting in the rack bar being obviated by the particular'A .mounted in' the lcase and in mesh with the other pinion; a-rack bar slidably mounted in the case and. in mesh with thesecond pin-ion; anuarmarranged at its lower endA or connection with 'the 4movable portion of a vehicle axle, andarranged to extend to the front of the. axle and above 'thev same;

and a rigid 'connecting' bar locatedv in the plane of the rack bar and pivotally connected at one end to the up er end of the arm and pivotally connecte at the other end to the rack bar. 2. device of the class described includa case arranged to be mounted'upon a ve icle; a lamp-carrying shaft journaled for. rotation in the case; a pinion secured to the shaft within the case; a second inion mounted fin the case and in mesh wlth the other pinion; a rack bar slidably mounted inthe case and in mesh with the second inion; an arm. arranged at itsA lower end or connection with the movable portion of a vehicle axle, and arranged to extend Vto the i .front of the axle and above the same; a rigid Actmnecting bar located in the plane of the rack; bar and pivotally connected. att-one In testimonyl end to the upper end of` the arm; a ball and socket joint uniting the other end 'of the 3. A 4device of the class described-cornprising spacedcases adapted to be mounted upon a. vehicle; lamp-carryingshafts'journaled for rotation'inthe cases; a. bar held by the cases for slidingmovement in the direction of its length; means located within the cases for operatively connecting the bar with the shafts to secure a'rot-ation of the latter upon a reciprocation of the former;

^ and axle-carried means for sliding the bar.

4. A device of the class described com-- prising spaced cases adapted to be mounted upon Aa vehicle;v lamp carrying shafts jurnaled for rotation in the cases; a bar held bythe cases for sliding movement in the di rection of its length,- and provided with racks; -gear trains for the operation of the shafts located in the cases and engaging the racks; resilient, casefcarried means maintaining the racks in engagement with the gear trains; and' axle-carried means for moving the bar.

5. A 'device of the dass described wm-- prising spaced cases adapted to be mounted 's u on a vehicle' lamp-carrying shafts journled for rotation n the cases; a bar held by the cases for longitudmal sliding moyeand provided with racks; r trains ment for the operation of the shifts coated 1n the cases and enge the racks; axle-caror y ried means for moving the bnr; and e swivel connection between said means and the bar that I .claim the foregoing as my own, I ave hereto allixed my slgna; ture 1n the presence of two witnesses.

CARLV R.. BLACKMAN.

Witnesses:

LAWRENCE K. LUN'r, RAYNER M. GARDINER. 

